fullymatted.
Back to search
Rennlist

Life expectancy of a Air Injection cutoff valve?

Add to repair workspace
Open repair workspace
Original source
11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHLife expectancy of a Air Injection cutoff valve?

Leading reported evidence

Replace air injection cutoff valve (#993-113-245-01)

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

The air injection cutoff valve (#993-113-245-01) was replaced along with several vacuum hoses/lines barely over a year ago.

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?
Frequently discussed work

Check entire system

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Leaks - check the entire system with a MightyVac or similar .

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?
Read full discussion summary

Leading evidence: 'Replace air injection cutoff valve (#993-113-245-01)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check entire system' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 11 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Check entire system

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Leaks - check the entire system with a MightyVac or similar .

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?

Replace with silicone tube and brass fittings

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I replace with silicone tube and brass fittings because repeating the work is not enjoyable.

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?

Run around 90 seconds

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

SAI pump - should run for around 90 seconds after a cold start.Hairdryer noise from Bank 1 area

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check entire system

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Leaks - check the entire system with a MightyVac or similar .

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?

Replace air injection cutoff valve (#993-113-245-01)

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

The air injection cutoff valve (#993-113-245-01) was replaced along with several vacuum hoses/lines barely over a year ago.

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?

Replace with silicone tube and brass fittings

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I replace with silicone tube and brass fittings because repeating the work is not enjoyable.

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?

Run around 90 seconds

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

SAI pump - should run for around 90 seconds after a cold start.Hairdryer noise from Bank 1 area

Original post Read captured discussion
Life expectancy of a Air Injection cutoff valve?
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

11 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So, I'm getting a check engine light with P0410 & P1411 codes. The air injection cutoff valve (#993-113-245-01) was replaced along with several vacuum hoses/lines barely over a year ago. Assuming that the air injection cutoff valve is causing the failure, do these valves have a history of failing this quickly? Mike

POST 2Original post

Can you hear the SAI pump running? If yes, visually check if any of the vacuum hoses are undone. It's also possible the SAI changeover valve has failed. It's next to the vacuum tank (need to remove the alternator to gain access). What year is your 996?

POST 3Original post

Get to a good write up on how to remove your alternator or you will have loads of problems in doing so. You will most certainly break the very brittle evap lines behind the alternator.

POST 4 / ORIGINAL POSTEROriginal post

Quotes source post: 14336110

^^^^ No problems with removing the alternator. Did that a couple weeks ago. 1999. All vacuum hoses are connected and in good condition. I haven't checked to listen to the SAI pump but, I assume it is running. Everything sounds pretty normal, but, I haven't listened specifically for the SAI pump. Where is the changeover valve mounted to? Mike

POST 5Original post

Behind the alternator - very cramped. Leaks - check the entire system with a MightyVac or similar . Visual checks are worthless. I replace with silicone tube and brass fittings because repeating the work is not enjoyable. Valves - remove and bench test to be sure. Tedious ! SAI pump - should run for around 90 seconds after a cold start.Hairdryer noise from Bank 1 area

POST 6 / ORIGINAL POSTEROriginal post

^^^^ Thanks for the info. Looks like I'll be spending some more time working on the 996! Mike

POST 7Original post

This thread might help. https://www.renntech.org/forums/topic/10184-cel-p0410-p1411/

POST 8 / ORIGINAL POSTEROriginal post

^^^^ Thank you! I'll give it a study. Mike

POST 9 / ORIGINAL POSTEROriginal post

Out of curiosity is it possible for a low-temp thermostat to cause a P0410 and/or P1411? Mike

POST 11 / ORIGINAL POSTEROriginal post

^^^^ Good to know. Thank Ahsai! Mike

This is a source reference. Confirm exact model applicability in the original material.